1165051655 has 8 divisors (see below), whose sum is σ = 1446271200. Its totient is φ = 899901856.

The previous prime is 1165051621. The next prime is 1165051673. The reversal of 1165051655 is 5561505611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1165051655 - 2⁸ = 1165051399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4017275 + ... + 4017564.

It is an arithmetic number, because the mean of its divisors is an integer number (180783900).

Almost surely, 2^1165051655 is an apocalyptic number.

1165051655 is a deficient number, since it is larger than the sum of its proper divisors (281219545).

1165051655 is an equidigital number, since it uses as much as digits as its factorization.

1165051655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034873.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1165051655 is about 34132.8530158263. The cubic root of 1165051655 is about 1052.2406136509.

The spelling of 1165051655 in words is "one billion, one hundred sixty-five million, fifty-one thousand, six hundred fifty-five".